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Comm<strong>on</strong> name: Alexandra Palm Latin name Arch<strong>on</strong>tophoenix alexandrae<br />
FAMILY: Arecaceae<br />
ORIGIN: Queensland Australia<br />
Noxious Weed Category: n/a<br />
Habit: This is a tall, solitary, handsome palm to about 25 metres (80 feet) tall with a spread of about 2 - 2.5<br />
metres (10 - 15 feet) and a graceful appearance. Leaves: The leaves, up to about 2 metres( 6-7 feet) l<strong>on</strong>g,<br />
are stiff pinnately compound fea<str<strong>on</strong>g>the</str<strong>on</strong>g>r-like fr<strong>on</strong>ds and have a tendency to rotate 90' to expose <str<strong>on</strong>g>the</str<strong>on</strong>g> whole leaf<br />
in profile (Figure 2). The leaflets are all in <str<strong>on</strong>g>the</str<strong>on</strong>g> same plane, bright green above with a silvery underside. (this<br />
distinguishes <str<strong>on</strong>g>the</str<strong>on</strong>g>m from <str<strong>on</strong>g>the</str<strong>on</strong>g> Bangalow Palm)The base of <str<strong>on</strong>g>the</str<strong>on</strong>g> petioles forms a bright green crownshaft that<br />
<str<strong>on</strong>g>the</str<strong>on</strong>g> leaves rarely droop below. The trunk is smooth and ringed with noticeable leaf scars and <str<strong>on</strong>g>the</str<strong>on</strong>g> base can<br />
be noticeably swollen. It can get to about 1/3 metre (<strong>on</strong>e foot) in diameter. Flowers: Flowers are formed<br />
below <str<strong>on</strong>g>the</str<strong>on</strong>g> crownshaft with <str<strong>on</strong>g>the</str<strong>on</strong>g> creamy flower stalks holding amy<str<strong>on</strong>g>the</str<strong>on</strong>g>st purple flowers. Fruit: The round fruit,<br />
about 12 mm (1/2 inch) in diameter, turn bright red at maturity.<br />
Ecology: Occurs in NEQ to as far south as Brisbane. Altitudinal range from near sea level to 1000 m.<br />
Grows in swampy areas and al<strong>on</strong>g drainage lines in rainforest, gallery forest al<strong>on</strong>g seas<strong>on</strong>ally dry creeks,<br />
vine forest, Melaleuca forest and mixed Eucalypt forest.<br />
Dispersal: Seed, usually spread by birds but also often as a c<strong>on</strong>taminant of garden waste/mulch and to a<br />
lesser extent in flowing water of riparian systems.<br />
C<strong>on</strong>trol<br />
As for many woody <strong>weeds</strong>, c<strong>on</strong>trol is best undertaken as early as possible while <str<strong>on</strong>g>the</str<strong>on</strong>g> plant is as small as<br />
possible. HAND: Seedlings can be hand-pulled, but young plants quickly develop a str<strong>on</strong>g, fibrous root<br />
system making hand-pulling difficult. Juveniles can be chipped out. CHEMICAL: Juveniles can be cut close<br />
to ground level and immediately painted with undiluted glyphosate (eg Roundup Biactive). Larger palms<br />
can be treated by chiselling or drilling around <str<strong>on</strong>g>the</str<strong>on</strong>g> trunk close to <str<strong>on</strong>g>the</str<strong>on</strong>g> ground 100mm apart and filling with<br />
2mm of undiluted glyphosate per hole.<br />
Alexandra Palm Bangalow Palm